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arXiv · 2109.00350

Path-integral approach to the thermodynamics of bosons with memory: Density and correlation functions

Timour Ichmoukhamedov·Jacques Tempere
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Abstract

Expanding upon previous work, using the path-integral formalism we derive expressions for the one-particle reduced density matrix and the two-point correlation function for a quadratic system of bosons that interact through a general class of memory kernels. The results are applied to study the density, condensate fraction and pair correlation function of trapped bosons harmonically coupled to external distinguishable masses.

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Timour Ichmoukhamedov, Jacques Tempere. 2021-09-01. Path-integral approach to the thermodynamics of bosons with memory: Density and correlation functions. https://doi.org/10.1103/physreva.104.062201

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